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Synthesis of disulfides

Recent Literature

In an efficient, copper-catalyzed electrophilic persulfuration reaction leading to unsymmetrical disulfides and polysulfides, various nucleophiles, including aryl boronic acids, β-keto esters, and thiols, can be used as substrates. This method offers simple and practical conditions, and general scope.
R. Sanz, A. Martinez, J. M. Alvarez-Gutierrez, F. Rodriquez, Eur. J. Org. Chem., 2006, 1383-1386.